40242245 has 8 divisors (see below), whose sum is σ = 48360480. Its totient is φ = 32147280.

The previous prime is 40242239. The next prime is 40242259. The reversal of 40242245 is 54224204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40242245 - 2⁸ = 40241989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40242245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751 + ... + 9140.

It is an arithmetic number, because the mean of its divisors is an integer number (6045060).

Almost surely, 2^40242245 is an apocalyptic number.

It is an amenable number.

40242245 is a deficient number, since it is larger than the sum of its proper divisors (8118235).

40242245 is a wasteful number, since it uses less digits than its factorization.

40242245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11635.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 40242245 is about 6343.6775611628. The cubic root of 40242245 is about 342.6841888512.

Adding to 40242245 its reverse (54224204), we get a palindrome (94466449).

The spelling of 40242245 in words is "forty million, two hundred forty-two thousand, two hundred forty-five".